This book covers a variety of basic logical techniques at an introductory level. In the first chapter, fundamental concepts--such as argument, validity, deduction vs. induction, etc.--are introduced, and the basics of argumentative analysis are discussed: distinguishing conclusions from premises, diagramming arguments. The second chapter covers informal fallacies. The third and fourth chapters concern deductive logic--Aristotelian and sentential logic, respectively. The final two chapters cover inductive logic. Analogical arguments and causal arguments (with discussion of Mill's Methods) are the topics of Chapter 5. Chapter 6 looks at basic probability calculations, Bayesian inference, fundamental statistical concepts, and common statistical fallacies.